Dell Latitude 7202 Rugged Tablet BIOS prior A28 System Management Mode use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

A vulnerability classified as critical has been found in Dell Latitude 7202 Rugged Tablet BIOS (Tablet Operating System). This affects an unknown part of the component System Management Mode. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Dell Latitude 7202 Rugged Tablet BIOS versions prior to A28 contain a UAF vulnerability in EFI_BOOT_SERVICES in system management mode. A local unauthenticated attacker may exploit this vulnerability by overwriting the EFI_BOOT_SERVICES structure to execute arbitrary code in system management mode.

The weakness was disclosed 04/04/2020. This vulnerability is uniquely identified as CVE-2020-5348 since 01/03/2020. An attack has to be approached locally. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

Upgrading to version A28 eliminates this vulnerability.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 8.4
VulDB Temp Score: 8.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Latitude 7202 Rugged Tablet BIOS A28

Timelineinfo

01/03/2020 🔍
04/04/2020 +92 days 🔍
04/04/2020 +0 days 🔍
04/04/2020 +0 days 🔍

Sourcesinfo

Vendor: dell.com

Status: Not defined

CVE: CVE-2020-5348 (🔍)

Entryinfo

Created: 04/04/2020 13:43
Updated: 04/04/2020 13:48
Changes: 04/04/2020 13:43 (37), 04/04/2020 13:48 (12)
Complete: 🔍

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